1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * (C) Copyright 2017 Linaro 4 * Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org> 5 */ 6 7 #include <dm.h> 8 #include <common.h> 9 #include <asm/io.h> 10 #include <dm/platform_data/serial_pl01x.h> 11 #include <asm/arch/hi3798cv200.h> 12 #include <asm/arch/dwmmc.h> 13 #include <asm/armv8/mmu.h> 14 15 DECLARE_GLOBAL_DATA_PTR; 16 17 static struct mm_region poplar_mem_map[] = { 18 { 19 .virt = 0x0UL, 20 .phys = 0x0UL, 21 .size = 0x80000000UL, 22 .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) | 23 PTE_BLOCK_INNER_SHARE 24 }, { 25 .virt = 0x80000000UL, 26 .phys = 0x80000000UL, 27 .size = 0x80000000UL, 28 .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) | 29 PTE_BLOCK_NON_SHARE | 30 PTE_BLOCK_PXN | PTE_BLOCK_UXN 31 }, { 32 0, 33 } 34 }; 35 36 struct mm_region *mem_map = poplar_mem_map; 37 38 #if !CONFIG_IS_ENABLED(OF_CONTROL) 39 static const struct pl01x_serial_platdata serial_platdata = { 40 .base = REG_BASE_UART0, 41 .type = TYPE_PL010, 42 .clock = 75000000, 43 }; 44 45 U_BOOT_DEVICE(poplar_serial) = { 46 .name = "serial_pl01x", 47 .platdata = &serial_platdata, 48 }; 49 #endif 50 51 int checkboard(void) 52 { 53 puts("BOARD: Hisilicon HI3798cv200 Poplar\n"); 54 55 return 0; 56 } 57 58 void reset_cpu(ulong addr) 59 { 60 psci_system_reset(); 61 } 62 63 int dram_init(void) 64 { 65 gd->ram_size = get_ram_size(NULL, 0x80000000); 66 67 return 0; 68 } 69 70 /* 71 * Some linux kernel versions don't use memory before its load address, so to 72 * be generic we just pretend it isn't there. In previous uboot versions we 73 * carved the space used by BL31 (runs in DDR on this platfomr) so the PSCI code 74 * could persist in memory and be left alone by the kernel. 75 * 76 * That led to a problem when mapping memory in older kernels. That PSCI code 77 * now lies in memory below the kernel load offset; it therefore won't be 78 * touched by the kernel, and by not specially reserving it we avoid the mapping 79 * problem as well. 80 * 81 */ 82 #define KERNEL_TEXT_OFFSET 0x00080000 83 84 int dram_init_banksize(void) 85 { 86 gd->bd->bi_dram[0].start = KERNEL_TEXT_OFFSET; 87 gd->bd->bi_dram[0].size = gd->ram_size - gd->bd->bi_dram[0].start; 88 89 return 0; 90 } 91 92 static void usb2_phy_config(void) 93 { 94 const u32 config[] = { 95 /* close EOP pre-emphasis. open data pre-emphasis */ 96 0xa1001c, 97 /* Rcomp = 150mW, increase DC level */ 98 0xa00607, 99 /* keep Rcomp working */ 100 0xa10700, 101 /* Icomp = 212mW, increase current drive */ 102 0xa00aab, 103 /* EMI fix: rx_active not stay 1 when error packets received */ 104 0xa11140, 105 /* Comp mode select */ 106 0xa11041, 107 /* adjust eye diagram */ 108 0xa0098c, 109 /* adjust eye diagram */ 110 0xa10a0a, 111 }; 112 int i; 113 114 for (i = 0; i < ARRAY_SIZE(config); i++) { 115 writel(config[i], PERI_CTRL_USB0); 116 clrsetbits_le32(PERI_CTRL_USB0, BIT(21), BIT(20) | BIT(22)); 117 udelay(20); 118 } 119 } 120 121 static void usb2_phy_init(void) 122 { 123 /* reset usb2 controller bus/utmi/roothub */ 124 setbits_le32(PERI_CRG46, USB2_BUS_SRST_REQ | USB2_UTMI0_SRST_REQ | 125 USB2_HST_PHY_SYST_REQ | USB2_OTG_PHY_SYST_REQ); 126 udelay(200); 127 128 /* reset usb2 phy por/utmi */ 129 setbits_le32(PERI_CRG47, USB2_PHY01_SRST_REQ | USB2_PHY01_SRST_TREQ1); 130 udelay(200); 131 132 /* open usb2 ref clk */ 133 setbits_le32(PERI_CRG47, USB2_PHY01_REF_CKEN); 134 udelay(300); 135 136 /* cancel usb2 power on reset */ 137 clrbits_le32(PERI_CRG47, USB2_PHY01_SRST_REQ); 138 udelay(500); 139 140 usb2_phy_config(); 141 142 /* cancel usb2 port reset, wait comp circuit stable */ 143 clrbits_le32(PERI_CRG47, USB2_PHY01_SRST_TREQ1); 144 mdelay(10); 145 146 /* open usb2 controller clk */ 147 setbits_le32(PERI_CRG46, USB2_BUS_CKEN | USB2_OHCI48M_CKEN | 148 USB2_OHCI12M_CKEN | USB2_OTG_UTMI_CKEN | 149 USB2_HST_PHY_CKEN | USB2_UTMI0_CKEN); 150 udelay(200); 151 152 /* cancel usb2 control reset */ 153 clrbits_le32(PERI_CRG46, USB2_BUS_SRST_REQ | USB2_UTMI0_SRST_REQ | 154 USB2_HST_PHY_SYST_REQ | USB2_OTG_PHY_SYST_REQ); 155 udelay(200); 156 } 157 158 int board_mmc_init(bd_t *bis) 159 { 160 int ret; 161 162 ret = hi6220_dwmci_add_port(0, REG_BASE_MCI, 8); 163 if (ret) 164 printf("mmc init error (%d)\n", ret); 165 166 return ret; 167 } 168 169 int board_init(void) 170 { 171 usb2_phy_init(); 172 173 return 0; 174 } 175 176